switching storage vendors

Radding, Alan
July 2005
Storage Magazine;Jul2005, Vol. 4 Issue 5, p48
This article presents experiences of three companies--Drummond Co. Inc., Overstock.com, and NeoGenesis Pharmaceuticals Inc.--in switching to different computer storage vendors. The move from EMC to the storage of Hitachi Data Systems Inc. could have been much more difficult for energy and mining company Drummond Co. Inc., but it used EMC with only one application. To ease the transition, Drummond scheduled the change to coincide with the end of its Symmetrix lease. The key to Drummond's migration was a three-step process to prepare the new storage for production that began the moment the deal was finalized. The first step was defining and allocating the redundant array independent disk groups. The second step was building the actual logical unit numbers. The first step was creating the Fibre Channel Storage Area Network using two Brocade switches. Online merchandise discounters Overstock.com deploys multiple clusters of Dell servers running Linux and an Oracle database. For the company, the trick was moving to the we storage while maintaining its full operations. Having resolved how to move the critical database cluster by cluster, Overstock.com was then comfortable letting EMC direct the rest of the migration and configuration.


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